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Lahoz C, Pintó X, Ribalta J. Clínica e Investigación en Arteriosclerosis, the Iberoamerican journal of lipidology and vascular risk. Clin Investig Arterioscler 2022; 34:86-87. [PMID: 35397853 DOI: 10.1016/j.arteri.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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Rehues P, Rodríguez M, Iranzo V, Mora J, Balsells C, Guardiola M, Ribalta J. Distribution of seven ApoC-III glycoforms in plasma, VLDL, IDL, LDL and HDL of healthy subjects. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ozcariz E, Rojo G, Guardiola M, Amigó N, Ribalta J. H - nuclear magnetic ressonance (H-NMR) -based metabolomic profiling provides a specific type 2 diabetes mellitus associated profile in Spanish population beyond glucose: The Di@bet.es study. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ozcariz E, Rojo G, Gil M, Guardiola M, Amigo N, Ribalta J. Characterization of the metabolomic profile by 1H-nuclear magnetic resonance spectroscopy in the DI@BET.ES study. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gil M, Rojo G, Ozcariz E, Guardiola M, Amigo N, Masana L, Ribalta J. Exploring lipoprotein patterns in DI@BET.ES study. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Guardiola M, Oliva I, Sanchez M, Plana N, Masana L, Monk D, Ribalta J. Pcsk9 Promoter Methylation Is Associated With Small Ldl Particles In Patients With Type 2 Diabetes And Metabolic Syndrome. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Guardiola M, Oliva I, Plana N, Ibarretxe D, Masana L, Ribalta J. Two TAGSNPS in PCSK9 are associated with tg metabolism in patients with type 2 diabetes and metabolic syndrome. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Winklhofer-Roob B, Faustmann G, Meinitzer A, Magnes C, Tiran B, Obermayer-Pietsch B, Gruber HJ, Ribalta J, Rock E, Roob J. SUN-P278: Progesterone-Regulated Arginine Decline at Luteal Phase of the Menstrual Cycle and Associations with Related Amino Acids and Derivatives and Nuclear Factor Kappa B P65 Activation. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30352-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Oliva I, Guardiola M, Vallvé J, Ibarretxe D, Plana N, Monk D, Masana L, Ribalta J. APOA5 snps and methylation jointly contribute to the individual predisposition to hypertriglyceridemia. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Parra S, Cabré A, Marimon F, Ferré R, Ribalta J, Gonzàlez M, Heras M, Castro A, Masana L. Circulating FABP4 is a marker of metabolic and cardiovascular risk in SLE patients. Lupus 2014; 23:245-54. [DOI: 10.1177/0961203313517405] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The aim of this study is to determine if circulating fatty acid-binding protein 4 (FABP4) plasma levels are a possible marker of metabolic risk in SLE patients. Circulating levels of adipose FABP4 are associated with adiposity, insulin resistance (IR), metabolic syndrome, diabetes and cardiovascular diseases. Patients affected by systemic lupus erythematosus (SLE) show an accelerated atherosclerosis that cannot be entirely explained by traditional cardiovascular risk factors. Sixty consecutive patients with SLE and 34 non-SLE age-matched controls were recruited for the study. Total plasma lipids and circulating FABP4 were determined. Subclinical atherosclerosis was evaluated by measuring carotid intimae-media thickness (c-IMT) by sonography, and the distribution of lipoprotein subclasses was analysed by nuclear magnetic resonance (NMR) spectroscopy. In the SLE group, FABP4 was associated with IR, atherogenic dyslipidaemia, as measured by NMR, and the presence of subclinical atherosclerosis. In multivariate analyses FABP4 was associated with increased c-IMT independent of the inflammatory state of the patient. In sum, circulating FABP4 is involved in the metabolic disturbances of SLE affecting lipid metabolism and IR, and it could be a biomarker of atherosclerosis in this population.
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Affiliation(s)
- S Parra
- Internal Medicine Department, “Sant Joan” University Hospital (Reus-Spain), Institut Investigació Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
- Grupo de Enfermedades Autoinmunes Sistémicas (GEAS), Sociedad Española de Medicina Interna (SEMI), Spain
| | - A Cabré
- URLA, CIBERDEM, “Sant Joan” University Hospital (Reus-Spain), IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - F Marimon
- Internal Medicine Department, “Sant Joan” University Hospital (Reus-Spain), Institut Investigació Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
| | - R Ferré
- Internal Medicine Department, “Sant Joan” University Hospital (Reus-Spain), Institut Investigació Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
- Unitat de Medicina Vascular i Metabolisme (UVASMET), Unitat de Recerca de Lipids i Arteriosclerosis (URLA), “Sant Joan” University Hospital (Reus-Spain), Internal Medicine, IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - J Ribalta
- URLA, CIBERDEM, “Sant Joan” University Hospital (Reus-Spain), IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - M Gonzàlez
- URLA, CIBERDEM, “Sant Joan” University Hospital (Reus-Spain), IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - M Heras
- URLA, CIBERDEM, “Sant Joan” University Hospital (Reus-Spain), IISPV, Universitat Rovira i Virgili, Reus, Spain
| | - A Castro
- Internal Medicine Department, “Sant Joan” University Hospital (Reus-Spain), Institut Investigació Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
- Grupo de Enfermedades Autoinmunes Sistémicas (GEAS), Sociedad Española de Medicina Interna (SEMI), Spain
| | - L Masana
- Internal Medicine Department, “Sant Joan” University Hospital (Reus-Spain), Institut Investigació Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
- Unitat de Medicina Vascular i Metabolisme (UVASMET), Unitat de Recerca de Lipids i Arteriosclerosis (URLA), “Sant Joan” University Hospital (Reus-Spain), Internal Medicine, IISPV, Universitat Rovira i Virgili, Reus, Spain
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Guardiola M, Alvaro A, Vallvé JC, Rosales R, Solà R, Girona J, Serra N, Duran P, Esteve E, Masana L, Ribalta J. APOA5 gene expression in the human intestinal tissue and its response to in vitro exposure to fatty acid and fibrate. Nutr Metab Cardiovasc Dis 2012; 22:756-762. [PMID: 21489765 DOI: 10.1016/j.numecd.2010.12.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2010] [Revised: 10/05/2010] [Accepted: 12/11/2010] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND AIMS APOA5, a key gene regulating triglyceride (TG) levels, is reported to be expressed exclusively in the liver where it may regulate TG-rich particle synthesis and secretion. Since the same lipoprotein processing occurs in the intestine, we have postulated that this organ would also express APOA5. METHODS AND RESULTS We have detected the APOA5 gene expression in C57BL/6J mouse and in human small intestine samples. In humans, it is expressed mainly in the duodenum and colon, with messenger RNA (mRNA) levels four orders of magnitude lower than in the liver, and the protein product being one-sixth of the liver equivalent. Subsequently, we carried out in vitro experiments in TC-7/CaCo(2) human intestinal cells to analyse the expression of APOA5, APOC3, APOB and MTP genes after the incubation with long- and short-chain fatty acids, and a peroxisome proliferator-activated receptor alpha (PPARα) agonist (Wy 14643, a fibrate therapeutic agent). In the TC-7 cell line, APOA5 expression was significantly upregulated by saturated fatty acids. The short-chain fatty acid butyrate increased APOA5 expression almost fourfold while APOB was downregulated by increasing butyrate concentrations. When TC-7 cells were incubated with PPARα agonist, the APOA5 expression was increased by 60%, while the expression of APOB, MTP and APOC3 was decreased by 50%, 30% and 45%, respectively. CONCLUSION Our results demonstrate that APOA5 is expressed in the intestine, albeit at a much lower concentration than in the liver. While it remains to be determined whether intestinal apo A-V is functional, our in vitro experiments show that its expression is modifiable by dietary and pharmacological stimuli.
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Affiliation(s)
- M Guardiola
- Unitat de Recerca en Lípids i Arteriosclerosi, Institut d'Investigacions Sanitàries Pere, Virgili, Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas, Universitat Rovira i Virgili, Reus, Spain
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Gonzalez M, Brugnara L, Murillo S, Guardiola M, Novials A, Ribalta J. 122 ACUTE EXERCISE INCREASES REMNANT LIPOPROTEIN CHOLESTEROL IN TYPE 1 DIABETES (T1DM). ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70123-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Parra S, Ferré R, Vives G, Ribalta J, Marimon F, González M, Castro A. 831 ARTERIAL STIFFNESS IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS IS CORRELATED WITH IMT AND IS DEPENDENT OF TRIGLYCERIDES. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70832-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Gonzàlez M, Ribalta J, Vives G, Iftimie S, Ferré R, Plana N, Guardiola M, Dallinga-Thie G, Masana L, Castro A. Abstract: P924 NMR LIPOPROTEIN SUBCLASSES AND THE APOE GENOTYPE INFLUENCE CAROTID ATHEROSCLEROSIS IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71045-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Castro Cabezas M, Alipour A, Verseyden C, Salazar J, Masana L, Ribalta J. MTP-493G/T GENE POLYMORPHISM AND POSTPRANDIAL LIPEMIA IN FAMILIAL COMBINED HYPERLIPIDEMIA: EFFECTS OF TREATMENT WITH ATORVASTATIN. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70156-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Guardiola M, Alvaro A, Vallve J, Girona J, Rosales R, Sola R, Masana L, Ribalta J. INTESTINAL APOLIPOPROTEIN A5 EXPRESSION INVERSELY CORRELATES WITH THAT OF GENES NEEDED IN LIPOPROTEIN ASSEMBLY (MTP & APOB). ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70028-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Brtko J, Rock E, Nezbedova P, Krizanova O, Dvorcakova M, Minet-Quinard R, Farges MC, Ribalta J, Winklhofer-Roob BM, Vasson MP, Macejova D. Age-related change in the retinoid X receptor beta gene expression in peripheral blood mononuclear cells of healthy volunteers: effect of 13-cis retinoic acid supplementation. Mech Ageing Dev 2007; 128:594-600. [PMID: 17916375 DOI: 10.1016/j.mad.2007.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2007] [Revised: 08/10/2007] [Accepted: 08/21/2007] [Indexed: 11/18/2022]
Abstract
The regulation of cell growth and differentiation and also expression of a number of genes by retinoids are mediated by nuclear retinoid receptors (RARs and/or RXRs). In this study we investigated age-related alteration in both RAR and RXR receptor subtypes gene expression and tissue transglutaminase (tTG) activity before and after supplementation with 13-cis retinoic acid (13cRA) in human peripheral blood mononuclear cells (PBMCs). Healthy men (40) were divided in two groups according to their age (young group: 26.1+/-4.1 years and old group: 65.4+/-3.8 years). Each volunteer received 13cRA (Curacné), 0.5mg/(kgday)) during a period of 4 weeks. We have shown that RXRbeta expression was decreased significantly (p=0.0108) in PBMCs of elderly men when compared to that of young volunteers. Distribution of retinoic acid receptor subtype expression in PBMCs was found in the order: RXRbeta>RARgamma>RXRalpha>RARalpha. The tTG activity in PBMCs reflected a trend to be enhanced after 13-cis retinoic acid supplementation. In conclusion, we demonstrate a significant decrease in the expression of RXRbeta subtype of rexinoid receptors in PBMCs of healthy elderly men. Our data suggest that in healthy elderly men reduction of RXRbeta expression in PBMCs might be a common feature of physiological senescence.
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Affiliation(s)
- J Brtko
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Laboratory of Molecular Endocrinology, Vlarska 3, 833 06 Bratislava, Slovak Republic.
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Guardiola M, Alvaro A, Vallve J, Girona J, Rosales R, Masana L, Ribalta J. PO7-182 APOLIPOPROTEIN A5 IS EXPRESSED IN HUMAN SMALL INTESTINE AND IS UPREGULATED BY FIBRATES. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71192-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Salazar J, Ferre R, Guardiola M, Vallve J, Masana L, Ribalta J. PO1-7 RNA DIFFERENTIAL EXPRESSION IN SUBCUTANEOUS ADIPOSE TISSUE OF PATIENTS WITH FAMILIAL COMBINED HYPERLIPIDEMIA. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71017-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Girona J, Guardiola M, Cabré A, Manzanares J, Heras M, Ribalta J, Masana L. Mo-P6:425 The APO5-1131 T>C polymorphism is associated with increased concentrations of vitamin E and triglycerides in type 2 diabetic patients. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)80555-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Guardiola M, Ferré R, Alonso-Villaverde C, Coll B, Salazar J, Ribalta J, Masana L. We-P11:247 Protease inhibitor-associated dyslipidemia in HIV patients is strongly influenced by the apolipoprotein A5 gene. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81600-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ribalta J, Halkes C, Salazar J, Masana L, Erkelens W, Castro Cabezas M. W12.306 PPARγ, APOE and FABP-2 genes synergically elevate daylong triglycerides in lean normotrigyceridemic women. ATHEROSCLEROSIS SUPP 2004. [DOI: 10.1016/s1567-5688(04)90305-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Verseyden C, Ribalta J, Meijssen S, Salazar J, Masana L, Castro Cabezas M. W01.122 MTP gene polymorphisms and postprandial lipemia in FCHL. ATHEROSCLEROSIS SUPP 2004. [DOI: 10.1016/s1567-5688(04)90121-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Vallvé J, Uliaque K, Girona J, Cabre A, Ribalta J, Rosales R, Masana L. W10.268 Unsaturated fatty acids modulate ABCA1 gene expression in human THP-1 macrophages. ATHEROSCLEROSIS SUPP 2004. [DOI: 10.1016/s1567-5688(04)90267-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ferré R, Guardiola M, Negredo E, Ribalta J, Salazar J, Girona J, Clotet B, Masana L. W06.167 CETP activity is not influenced by Efavirenz. ATHEROSCLEROSIS SUPP 2004. [DOI: 10.1016/s1567-5688(04)90166-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Halkes CJM, Van Wijk JPH, Ribalta J, Masana L, Castro Cabezas M. Diurnal triglyceridaemia and insulin resistance in mildly obese subjects with normal fasting plasma lipids. J Intern Med 2004; 255:74-81. [PMID: 14687241 DOI: 10.1046/j.0954-6820.2003.01252.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE A novel method has been developed to study diurnal triglyceride (TG) profiles using repeated capillary self-measurements in an 'out-of-hospital' situation. We assessed the diurnal capillary TG (TGc) profile in males with mild obesity and evaluated the use of plasma and capillary TG as markers of insulin resistance. DESIGN Cross-sectional study. SETTING AND SUBJECTS Fifty-four lean (body mass index, BMI < 25 kg m-2) and 27 mildly obese (25 < BMI < 30 kg m-2), normolipidaemic males measured capillary TG concentrations on six fixed time-points over a 3-day period in an 'out-of-hospital' situation. MAIN OUTCOME MEASURES The total area under the TGc curve (TGc-AUC) and incremental area under the TGc curve (TGc-IAUC) were used as estimation of diurnal triglyceridaemia. Fasting blood samples were obtained once. Food intake was recorded by all participants. RESULTS Obese and lean subjects had comparable fasting capillary TG concentrations (1.37 +/- 0.40 mmol L-1 and 1.32 +/- 0.53 mmol L-1, respectively). However, during the day, obese subjects showed a greater TG increase, resulting in significantly higher TGc-AUC (27.1 +/- 8.4 and 23.0 +/- 6.3 mmol h-1 l-1, respectively; P < 0.05) and TGc-IAUC (7.9 +/- 5.8 and 4.6 +/- 6.6 mmolh-1 L-1, respectively; P < 0.05). The total group of 81 males was divided into quartiles based on fasting plasma TG, fasting capillary TG, TGc-AUC and TGc-IAUC. Amongst these variables, TGc-AUC was the only significant discriminator of subjects with high homeostasis model assessment (HOMA) (insulin resistance) compared with low HOMA (insulin sensitive). Overall, BMI was the strongest determinant of HOMA. CONCLUSIONS Diurnal TG profiles can be used to investigate postprandial lipaemia in both lean and mildly obese subjects and may help to detect subjects with an underlying disposition for hypertriglyceridaemia related to insulin resistance, i.e. the metabolic syndrome.
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Affiliation(s)
- C J M Halkes
- Department of Vascular Medicine, University Medical Center Utrecht, The Netherlands.
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Winklhofer-Roob B, Meinitzer A, Khoschsorur G, Maritschnegg M, Wonisch W, Roob J, Grolier P, Cardinault N, Tiran B, Sundl I, Halwachs G, Ribalta J, Rock E. Is healthy ageing associated with an oxidant-antioxidant imbalance? Clin Nutr 2003. [DOI: 10.1016/s0261-5614(03)80163-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Farges M, Walrand S, Minet-Quinard R, Thivat E, Cardinault N, Rock E, Ribalta J, Winklhofer-Roob B, Vasson M. Modulation of human PMN oxydative response: Age and carotenoid status effects. Clin Nutr 2003. [DOI: 10.1016/s0261-5614(03)80123-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sundl I, Maritschnegg M, Meinitzer A, Wuga S, Roob J, Tiran B, Rock E, Ribalta J, Winklhofer-Roob B. Plasma and LDL concentrations of vitamin A, E, C, and carotenoids in 300 healthy male volunteers of 3 European countries. Clin Nutr 2003. [DOI: 10.1016/s0261-5614(03)80140-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Minet-Quinard R, Farges M, Walrand S, Thivat E, Cardinault N, Rock E, Ribalta J, Winklhofer-Roob B, Vasson M. Effects of dietary carotenoid depletion and repletion on lymphocyte proliferation during aging. Clin Nutr 2003. [DOI: 10.1016/s0261-5614(03)80127-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sundl I, Maritschnegg M, Wuga S, Roob J, Preinsberger M, Godas G, Marktfelder E, Brandolini M, Hiller D, Ribalta J, Rock E, Winklhofer-Roob B. Fatty acid (FA) patterns in plasma and in LDL of 300 healthy male volunteers from 3 European countries. Clin Nutr 2003. [DOI: 10.1016/s0261-5614(03)80065-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sniderman AD, Castro Cabezas M, Ribalta J, Carmena R, de Bruin TWA, de Graaf J, Erkelens DW, Humphries SE, Masana L, Real JT, Talmud PJ, Taskinen MR. A proposal to redefine familial combined hyperlipidaemia -- third workshop on FCHL held in Barcelona from 3 to 5 May 2001, during the scientific sessions of the European Society for Clinical Investigation. Eur J Clin Invest 2002; 32:71-3. [PMID: 11895451 DOI: 10.1046/j.1365-2362.2002.00941.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
Oxidized lipoproteins inhibit TNF-alpha secretion by human THP-1 macrophages due, at least in part, to aldehydes derived from the oxidation of polyunsaturated fatty acids. This study extends these findings by investigating the effect of three aldehydes (2,4-decadienal (2,4-DDE), hexanal and 4-hydroxynonenal (4-HNE)) on TNF-alpha and IL-1beta mRNA expression. The 2,4-DDE and 4-HNE showed considerable biological activity which induced cytotoxicity on THP-1 macrophages at concentration of 50 microM. Hexanal, on the other hand, had a lower cytotoxic capacity and concentration of 1000 microM was needed for the effect to be observed. Exposure of THP-1 macrophages to aldehydes for 24 h inhibited TNF-alpha mRNA expression but increased or did not affect IL-1beta mRNA levels. The inhibitory action of 2,4-DDE was dose dependent and began at 5 microM (46%, P<0.001). The effect of 4-HNE was less inhibitory than 4-DDE but only when cytotoxic concentrations were used (50 microM). Very high concentrations of hexanal (200 microM) were needed to inhibit TNF-alpha expression (23%, P<0.001). This downregulation of TNF-alpha gene expression by 2,4-DDE was parallel to a lower protein production. These data indicate that low levels of 2,4-DDE may modulate inflammatory action by inhibiting TNF-alpha mRNA gene expression and that the biological activity of 2,4-DDE may be involved in the development of atherosclerosis.
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Affiliation(s)
- J Girona
- Unitat de Recerca de Lípids i Arteriosclerosi, Facultat de Medicina, Universitat Rovira i Virgili, C/Sant Llorenç 21, 43201 Reus, Spain
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Rock E, Winklhofer-Roob BM, Ribalta J, Scotter M, Vasson MP, Brtko J, Brigelius-Flohe R, Bronner A, Azaïs-Braesco V. Vitamin A, vitamin E and carotenoid status and metabolism during ageing: functional and nutritional consequences (VITAGE PROJECT). Nutr Metab Cardiovasc Dis 2001; 11:70-73. [PMID: 11894758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Among the nutritional factors contributing to maintain health during ageing, fat-soluble vitamins (FSV) are crucial to protect against free radical-generated degenerative processes or impaired efficiency of the immune system. However, no sound scientific evidence is able to confirm specific dietary needs in vitamin A, vitamin E and carotenoids for the healthy elderly. VITAGE project aims at providing such evidence by undertaking studies on male volunteers from 3 European countries, aged between 20-75 years. Biomarkers and variables related to status, metabolism and functions will be measured either in steady-state conditions, or during dietary depletion and repletion in FSV. Original, yet already developed, methodologies will provide clear information about the physiological characteristics of vitamin A, vitamin E and carotenoids. Simultaneously, marketing opportunities for FSV-enriched dietetic foods, specifically designed for the elderly will be determined. The scientific and economical evidence obtained in this project will provide the basis to implement a EU nutritional policy towards the elderly and to develop a new sector of dietetic food products.
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Affiliation(s)
- E Rock
- INRA. UMMM. CRNH, Centre de Theix, Saint-Genès Champanelle, France
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Sniderman AD, Ribalta J, Castro Cabezas M. How should FCHL be defined and how should we think about its metabolic bases? Nutr Metab Cardiovasc Dis 2001; 11:259-273. [PMID: 11831111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- A D Sniderman
- Mike Rosenbloom Laboratory for Cardiovascular Research, Room H7.22, Royal Victoria Hospital, 687 Pine Avenue West, Montreal, Quebec H3A 1A1, Canada.
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Ostos MA, Conconi M, Vergnes L, Baroukh N, Ribalta J, Girona J, Caillaud JM, Ochoa A, Zakin MM. Antioxidative and antiatherosclerotic effects of human apolipoprotein A-IV in apolipoprotein E-deficient mice. Arterioscler Thromb Vasc Biol 2001; 21:1023-8. [PMID: 11397714 DOI: 10.1161/01.atv.21.6.1023] [Citation(s) in RCA: 111] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mice expressing human apolipoprotein A-IV (apoA-IV) mainly in the intestine were obtained in an apolipoprotein E-deficient (apoE(0)) background (apoA-IV/E(0) mice). Quantification of aortic lesions and plasma lipid determination showed that compared with their control apoE(0) counterparts, the apoA-IV/E(0) mice are protected against atherosclerosis without an increase in HDL cholesterol. Because oxidized lipoproteins play an important role in atherogenesis, we tested whether the protection observed in these animals is accompanied by an in vivo reduction of the oxidation parameters. The lag time in the formation of conjugated dienes during copper-mediated oxidation, the aggregation state of LDL, and the presence of anti-oxidized LDL antibodies were measured. The presence of oxidized proteins in tissues and the presence of oxidation-specific epitopes in heart sections of atherosclerotic lesions were also analyzed. Except for lag time, the results showed that the oxidation parameters were reduced in the apoA-IV/E(0) mice compared with the apoE(0) mice. This suggests that human apoA-IV acts in vivo as an antioxidant. In addition, human apoA-IV accumulation was detected in the atherosclerotic lesions of apoA-IV/E(0) mice, suggesting that apoA-IV may inhibit oxidative damage to local tissues, thus decreasing the progression of atherosclerosis.
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Affiliation(s)
- M A Ostos
- Unité d'Expression des Gènes Eucaryotes, Institut Pasteur, Paris, France.
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37
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Vallvé J, Uliaque K, El Mesal M, Ribalta J, Ait Chihab K, Olivé S, Pérez-Jiménez F, Pedro-Botet J, Ros E, Masana L. Screening of point mutations in the LDL-receptor gene in Spanish patients with familial hypercholesterolemia. ATHEROSCLEROSIS SUPP 2001. [DOI: 10.1016/s1567-5688(01)80139-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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van Oostrom AJ, Castro Cabezas M, Ribalta J, Masana L, Twickler TB, Remijnse TA, Erkelens DW. Diurnal triglyceride profiles in healthy normolipidemic male subjects are associated to insulin sensitivity, body composition and diet. Eur J Clin Invest 2000; 30:964-71. [PMID: 11114958 DOI: 10.1046/j.1365-2362.2000.00732.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Elevated fasting and postprandial triglycerides (TG) are established risk factors for Coronary Heart Disease (CHD). Usually, fasting plasma TG are measured, although TG are mainly produced in a postprandial state. Our objective was to investigate diurnal TG profiles using serial capillary TG measurements, in normolipidemic healthy males. MATERIALS AND METHODS Forty-eight, non-obese, non-smoking males (range: 20-55 years, mean age: 32 +/- 12 years), measured diurnal capillary TG, at six fixed timepoints during the day on three different days and recorded their food intake. Insulin sensitivity was estimated by HOMA. Diurnal capillary TG profiles were calculated as integrated area under the mean capillary TG curve (TGc-AUC). RESULTS All subjects had normal fasting plasma TG and cholesterol. The average TGc-AUC was 23.6 +/- 6.7 mmol h L-1. Significant correlations with TGc-AUC were: fasting insulin (r = 0. 40, P < 0.005), HOMA (r = 0.32, P < 0.05), relative fat mass (r = 0. 31, P < 0.05), dietary protein-(r = 0.31, P < 0.05) and saturated fat intake (r = 0.30, P < 0.05). Age was not associated to diurnal triglyceridemia. After subdividing the group into quartiles on the base of TGc-AUC, differences were found between the highest (n = 12) and lowest quartile (n = 12) for: fasting capillary TG, fasting insulin, HOMA and systolic blood pressure. Fasting plasma TG and dietary intake were not different. CONCLUSION Diurnal TG profiles in healthy normolipidemic males are not age-dependent, but are associated to insulin sensitivity, fat mass and diet. Diurnal capillary TG profiles may be a valuable additional tool in estimating a risk profile for CHD since significant differences in diurnal TG are not always reflected by elevated fasting plasma TG.
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Affiliation(s)
- A J van Oostrom
- University Hospital Utrecht, Utrecht, The Netherlands, University Rovira I Virgili, Reus, Spain
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Siest G, Bertrand P, Qin B, Herbeth B, Serot JM, Masana L, Ribalta J, Passmore AP, Evans A, Ferrari M, Franceschi M, Shepherd J, Cuchel M, Beisiegel U, Zuchowsky K, Rukavina AS, Sertic J, Stojanov M, Kostic V, Mitrevski A, Petrova V, Sass C, Merched A, Salonen JT, Tiret L, Visvikis S. Apolipoprotein E polymorphism and serum concentration in Alzheimer's disease in nine European centres: the ApoEurope study. ApoEurope group. Clin Chem Lab Med 2000; 38:721-30. [PMID: 11071064 DOI: 10.1515/cclm.2000.102] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
As part of the ApoEurope Project, apolipoprotein E (apo E) common polymorphism and serum concentration were determined in 489 Alzheimer's disease patients and 429 controls. Patients and controls were recruited through nine centres in eight European countries. Age, sex ratios and education levels of both case and control populations were similar, although discrete differences appeared between centres. The prevalence of the epsilon4 allele was higher in Alzheimer's disease than in controls (increased by 140%), while serum apo E concentration was lower by 11.2% (p<0.001). In addition, serum total cholesterol and triglyceride concentrations were lower in Alzheimer's disease (p<0.001), while that of apo Al was not affected. The decrease in serum apo E concentration was not accounted for by the epsilon4 allele, age or gender, suggesting that apo E concentration might represent an additional risk factor for Alzheimer's disease, complementary and independent of the epsilon4 allele. Further analysis will be aimed at determining whether the quantitative link between apo E concentration and Alzheimer's disease occurs through the effect of apo E genotype on lipid parameters or by other mechanisms.
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Affiliation(s)
- G Siest
- Centre de Médecine Préventive, INSERM U525, Université Henri Poincaré - Nancy 1, Vandoeuvre-lès-Nancy, France.
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40
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Azais-Braesco V, Winklhoffer-Roob B, Ribalta J, Hanley B, Vasson MP, Brtko J, Brigeluis-Flohe R, Bronner A. Vitamin A, vitamin E and carotenoid status and metabolism during ageing: functional and nutritional consequences (project proposal). Endocr Regul 2000; 34:97-8. [PMID: 10911411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Affiliation(s)
- V Azais-Braesco
- INRA-UMM-CRNH Centre de Theix, Saint-Genes Champanelle, France.
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41
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Reyes H, Báez ME, González MC, Hernández I, Palma J, Ribalta J, Sandoval L, Zapata R. Selenium, zinc and copper plasma levels in intrahepatic cholestasis of pregnancy, in normal pregnancies and in healthy individuals, in Chile. J Hepatol 2000; 32:542-9. [PMID: 10782901 DOI: 10.1016/s0168-8278(00)80214-7] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND/AIMS Low blood Se levels have been previously shown in normal pregnancies (third trimester) and significantly lower levels in patients with intrahepatic cholestasis of pregnancy (ICP), in Finland and in Chile, suggesting that a low or marginal dietary availability of Se may contribute to the pathogenesis of this disease. The aim of this study was to investigate whether a temporal change in plasma concentration of Se, and seasonal fluctuations in plasma concentrations of Se, Zn and Cu, could coincide with changes in the prevalence of ICP. METHODS A cross-sectional cohort study was done including 21 ICP patients, 98 women in the third trimester of a normal pregnancy, 29 non-pregnant women, and also 13 individuals (seven non-pregnant women and six men) who had been studied 9 years before. Plasma Se, Zn and Cu were measured by atomic spectroscopy. Plasma Se levels in the present study were compared to the results obtained 5 to 7 years before, employing identical methodology in similar population samples. RESULTS Plasma Se concentrations in non-pregnant women were higher than in the previous study: 1.43+/-0.34 micromol/l vs 0.85+/-0.13; p<0.001. In comparison to non-pregnant women, normal pregnancies near term had lower plasma levels of Se: 1.08+/-0.25 micromol/l; p<0.01, and Zn: 17.90+/-3.61 micromol/l vs 19.71+/-3.21; p<0.05, but higher plasma levels of Cu: 34.35+/-7.12 micromol/l vs 20.62+/-3.34; p<0.01. In normal pregnancies, plasma Se concentration was significantly higher in summer (1.34+/-0.19 micromol/l) than in the other seasons, while Zn and Cu diminished. Similar to previous studies, ICP patients had significantly lower Se plasma levels than normal pregnancies: 0.94+/-0.12 micromol/l, p<0.05, and Cu levels were significantly higher: 50.80+/-7.02 micromol/l, p<0.01. Cu plasma levels correlated with the biochemical severity of the disease. Zn did not change in ICP. CONCLUSIONS The present study shows that the decrease in the prevalence of ICP in Chile during the last decade coincides with an increase in plasma Se levels. Its lower incidence during summer coincides with a higher plasma Se concentration in summer than in other seasons, as observed in normal pregnancies.
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Affiliation(s)
- H Reyes
- Department of Medicine, Hospital del Salvador and Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago de Chile.
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Abstract
OBJECTIVE To determine whether estrogen production and excretion are impaired in gravidas with intrahepatic cholestasis. METHODS Plasma and urine samples were collected from 13 women from the United States and Chile at 35-38 weeks' gestation with mild (n = 9) or severe (n = 4) intrahepatic cholestasis of pregnancy. Urinary and plasma steroid levels from women with cholestasis were compared with levels from 27 normal pregnant women within the same gestational age range. Urinary concentrations of dehydroepiandrosterone (DHEA), estrone (E1), estradiol (E2), estriol (E3), estetrol, progesterone, and 16-hydroxy-pregnenolone were measured by gas chromatography mass spectrometry, and plasma concentrations of DHEA sulfate, progesterone, unconjugated E1, unconjugated E2, unconjugated E3, sulfated E3 derivatives, glucuronidated E3 derivatives, and total E3 were measured by radioimmunoassay. RESULTS Compared with normal pregnant women, women with cholestasis had significantly lower plasma levels of estrogens and DHEA sulfate, the precursor to placental estrogen production synthesized by the fetal adrenal gland (Hotelling-Lawley trace = 0.81; F4,19 = 3.9; P = .02). The mean plasma DHEA sulfate, unconjugated E2, unconjugated E3, and total E3 concentrations were 0.271, 10.21, 9.80, and 99.53 ng/mL, respectively, in women with cholestasis compared with 0.802, 18.98, 16.28, and 145.07 ng/mL for controls. CONCLUSION Fetal adrenal production of DHEA sulfate, and in response, downstream placental production of estrogens, was compromised by intrahepatic cholestasis of pregnancy.
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Affiliation(s)
- K K Leslie
- Department of Obstetrics and Gynecology, University of Colorado Health Sciences Center, Denver 80262, USA.
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43
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Abstract
OBJECTIVE To determine whether estrogen production and excretion are impaired in gravidas with intrahepatic cholestasis. METHODS Plasma and urine samples were collected from 13 women from the United States and Chile at 35-38 weeks' gestation with mild (n = 9) or severe (n = 4) intrahepatic cholestasis of pregnancy. Urinary and plasma steroid levels from women with cholestasis were compared with levels from 27 normal pregnant women within the same gestational age range. Urinary concentrations of dehydroepiandrosterone (DHEA), estrone (E1), estradiol (E2), estriol (E3), estetrol, progesterone, and 16-hydroxy-pregnenolone were measured by gas chromatography mass spectrometry, and plasma concentrations of DHEA sulfate, progesterone, unconjugated E1, unconjugated E2, unconjugated E3, sulfated E3 derivatives, glucuronidated E3 derivatives, and total E3 were measured by radioimmunoassay. RESULTS Compared with normal pregnant women, women with cholestasis had significantly lower plasma levels of estrogens and DHEA sulfate, the precursor to placental estrogen production synthesized by the fetal adrenal gland (Hotelling-Lawley trace = 0.81; F4,19 = 3.9; P = .02). The mean plasma DHEA sulfate, unconjugated E2, unconjugated E3, and total E3 concentrations were 0.271, 10.21, 9.80, and 99.53 ng/mL, respectively, in women with cholestasis compared with 0.802, 18.98, 16.28, and 145.07 ng/mL for controls. CONCLUSION Fetal adrenal production of DHEA sulfate, and in response, downstream placental production of estrogens, was compromised by intrahepatic cholestasis of pregnancy.
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Affiliation(s)
- K K Leslie
- Department of Obstetrics and Gynecology, University of Colorado Health Sciences Center, Denver 80262, USA.
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Pineda G, Aguayo J, Ribalta J, González M, Reyes H. [Thyroid function tests in normal pregnant women (third trimester) and in pregnant women with pregnancy cholestasis or with acute hepatitis]. Rev Med Chil 2000; 128:35-43. [PMID: 10883520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND Intrahepatic cholestasis of pregnancy (ICP) is a disease of unknown cause characterized by pruritus and biochemical cholestasis in the 3rd trimester of pregnancy. Its pathogenesis may be due to the interaction of abnormalities in the metabolism of estrogens and progesterone, while still unknown environmental factor (s) modulate the expressivity of a genetic predisposing trait. AIMS To verify if thyroid function tests (TFT) are altered in ICP as in other hepatic diseases and whether a dietary iodine deficiency could be involved. MATERIAL AND METHODS From 1983 to 1986, 13 normal pregnancies (3rd trimester), 26 ICP patients (with 30 pregnancies) and 4 patients with acute non-A non-B hepatitis in pregnancy, were studied. Serum T3, rT3, T4, fT4 and TSH (before and after TRH) were measured by RIA; in ICP patients, measurements were repeated in puerperium. Urinary 24 h iodine excretion was measured in normal pregnancies and in 6 ICP patients. RESULTS In normal pregnancies, T3 (3.00 +/- 0.22 nmol/L) and rT3 (0.40 +/- 0.03 nmol/L) were higher than the values detected in non-pregnant women; other TFT were unchanged. Urinary iodine excretion was normal in all individuals tested. Patients with acute hepatitis in pregnancy or with ICP had lower T3 than normal pregnancies (1.82 +/- 0.19 nmol/L in hepatitis; 2.24 +/- 0.12 nmol/L in ICP; p < 0.01) and higher rT3 (0.80 +/- 0.25 nmol/L in hepatitis; 0.54 +/- 0.05 nmol/L in ICP; p < 0.05), while other TFT were unchanged. None of them had clinical signs of hypo or hyperthyroidism. A "euthyroid sick syndrome" was detected in 2 ICP patients and in 2 acute hepatitis in pregnancy. In puerperium of ICP patients, T3 and rT3 returned to levels in non-pregnant women. CONCLUSIONS In ICP patients, TFT show similar trends than in more severe hepatic and non-hepatic diseases. Although thyroid binding-globulin was not measured in our patients, the pattern of TFT suggests that an impaired peripheral (hepatic?) deiodination of T4 is responsible for these changes. The influence of a dietary iodine deficiency can be ruled out.
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Affiliation(s)
- G Pineda
- Departamento de Medicina (Campus Oriente), Facultad de Medicina de la Universidad de Chile, Santiago, Chile
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Vallvé J, Ribalta J, Girona J, Heras M, Solà R, Masana L. Oleic acid increases mRNA expression of the scavenger receptor CD36 in human monocytic cells. Atherosclerosis 1999. [DOI: 10.1016/s0021-9150(99)80665-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Waterworth DM, Ribalta J, Nicaud V, Dallongeville J, Humphries SE, Talmud P. ApoCIII gene variants modulate postprandial response to both glucose and fat tolerance tests. Circulation 1999; 99:1872-7. [PMID: 10199885 DOI: 10.1161/01.cir.99.14.1872] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND We investigated the relationship between variation in the apolipoprotein (apo) AI-CIII-AIV gene cluster and response to an oral glucose test (OGTT) and oral fat load test (OFTT) in the EARSII group of young, healthy male offspring whose fathers had had a myocardial infarction before the age of 55 years (cases, n=407) compared with age-matched controls (n=415). The apoCIII variations examined were C3238G (SstI) in the 3'-UTR, C1100T in exon 3, C-482T in the insulin response element (IRE), and T-2854G in the apoCIII-AIV intergenic region. METHODS AND RESULTS The postprandial response was regulated by variation at the T-2854G and C3238G sites. After the OFTT, carriers of the rare alleles had delayed clearance of triglyceride (Tg) levels; G-2854 carriers showed the largest effect on Tg (AUC, 24% greater, P<0.002; peak, 19% greater, P<0.005), and G3238 carriers showed a smaller response (AUC, 13% greater, P<0.05; peak, 13% greater, P=0.03). However, after adjustment for fasting level of Tg, only the effect with the T-2854G remained significant. Variation at the C-482T (IRE) determined response to the OGTT, with carriers of the rare T-482 having significantly elevated glucose (28.7% AUC, P=0.013) and insulin (20.5% AUC, P<0. 01) concentrations. CONCLUSIONS These data suggest that specific genetic variants at the apoCIII gene locus differentially affect postprandial and response to OGTT and suggest a novel mechanism for the effects of variation at this locus on risk for atherosclerosis.
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Affiliation(s)
- D M Waterworth
- Division of Cardiovascular Genetics, Department of Medicine, The Rayne Institute, University College London, UK.
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Ribalta J, Girona J, Vallvé JC, La Ville AE, Heras M, Masana L. Vitamin A is linked to the expression of the AI-CIII-AIV gene cluster in familial combined hyperlipidemia. J Lipid Res 1999; 40:426-31. [PMID: 10064730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
There is growing evidence of the capacity of vitamin A to regulate the expression of the genetic region that encodes apolipoproteins (apo) A-I, C-III, and A-IV. This region in turn has been proposed to modulate the expression of hyperlipidemia in the commonest genetic form of dyslipidemia, familial combined hyperlipidemia (FCHL). The hypothesis tested here was whether vitamin A (retinol), by controlling the expression of the AI-CIII-AIV gene cluster, plays a role in modulating the hyperlipidemic phenotype in FCHL. We approached the subject by studying three genetic variants of this region: a C1100-T transition in exon 3 of the apoC-III gene, a G3206-T transversion in exon 4 of the apoC-III gene, and a G-75-A substitution in the promoter region of the apoA-I gene. The association between plasma vitamin A concentrations and differences in the plasma concentrations of apolipoproteins A-I and C-III based on the different genotypes was assessed in 48 FCHL patients and 74 of their normolipidemic relatives. The results indicated that the subjects carrying genetic variants associated with increased concentrations of apoA-I and C-III (C1100-T and G-75-A) also presented increased plasma concentrations of vitamin A. This was only observed among the FCHL patients, which suggested that certain characteristics of these patients contributed to this association. The G3206-T was not associated with changes in either apolipoprotein concentrations or in vitamin A. In summary, we report a relationship between genetically determined elevations of proteins of the AI-CIII-AIV gene cluster and vitamin A in FCHL patients. More studies will be needed to confirm that vitamin A plays a role in FCHL which might also be important for its potential application to therapeutical approaches.
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Affiliation(s)
- J Ribalta
- Unitat de Recerca de Lípids i Arteriosclerosi, Facultat de Medicina, Hospital Universitari de Sant Joan, Universitat Rovira i Virgili, Reus, Spain
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Vallvé JC, Alonso-Villaverde C, Ribalta J, Pérez-Jiménez F, Masana L. Exon 4, and in particular codon 152 of the LDL receptor gene, is a hot spot for point mutations. Atherosclerosis 1998; 140:191-2. [PMID: 9733232 DOI: 10.1016/s0021-9150(98)00140-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ribalta J, La Ville AE, Vallvé JC, Girona J, Masana L. Evidence against alterations in Lecithin:cholesterol acyltransferase (LCAT) activity in familial combined hyperlipidemia. Atherosclerosis 1998; 138:383-9. [PMID: 9690923 DOI: 10.1016/s0021-9150(98)00043-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Elevated concentrations of plasma cholesterol and triglycerides are characteristic of familial combined hyperlipidemia (FCHL) which may also present with reduced high density lipoprotein (HDL) cholesterol concentrations. Lecithin:cholesterol acyltransferase (LCAT) plays a key role in reverse cholesterol transport by converting unesterified cholesterol to cholesterol ester in the process of maturation of HDL in the presence of its activator, apolipoprotein (apo) A-I. We hypothesised that alterations in LCAT activity or plasma concentrations or gene sequence of apo A-I could influence HDL metabolism in these patients. We studied cholesterol concentrations of high density lipoprotein subfractions and LCAT activity in 25 FCHL subjects and 48 controls. Total HDL (p=0.018) and HDL2 (p=0.008) were significantly decreased in the FCHL group compared with controls. After analyses with adjusted data only HDL2 remained significantly decreased in the FCHL group (p=0.050). The LDLc/HDLc and A-I/HDLc ratios were significantly elevated in the FCHL group (p <0.0001), the latter suggesting the existence of compositional differences in the HDL particles of the FCHL individuals. LCAT activity assessed in the FCHL (19.94+/-3.95 nmol/ml per h) and control (20.13+/-6.86 nmol/ml per h) groups showed no statistically significant differences. A significant positive correlation of LCAT activity with total HDL (r=0.42), HDL3 cholesterol (r=0.46) and apolipoprotein A-I (r=0.47) was observed in affected subjects but not in controls. An association between a Ga(-75)-A variation in the promoter region of the apo A-I gene and elevated concentrations of apo A-I (p=0.009) and apo C-III (p=0.041) was observed. This association was strongly influenced by the status of the subject providing further evidence for a regulatory role of this genetic region in the expression of FCHL. Our data suggests that LCAT activity is normal in FCHL and, therefore, does not account for the abnormalities observed in these patients essentially with regard to the HDL2 subfraction.
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Affiliation(s)
- J Ribalta
- Unitat de Recerca de Lipids, Facultat de Medicina, Hospital Universitari de Sant Joan, Universitat Rouirai Virgili, Reus, Spain.
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